1679395 - White screen, content appears only after moving cursor over it, with hardware acceleration enabled

Status: RESOLVED WORKSFORME

(Thunderbird :: Folder and Message Lists, defect)

Description

[Krzysztof]

Attachment: What I see after a few cursor movements revealing some of the content

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0

Steps to reproduce:

When I open Thunderbird or bring back from minimize I get most of screen white without any content. I can see only parts of top menu. But when I move the cursor over white space it reveals folders and message list and also tabs and parts of menu (like search boxes). After I reveal the whole screen in that way it works ok until I open an e-mail and close it or minimize and then bring back.

Actual results:

That bug started after last but one update but I don't remember from what exact version to what.

Expected results:

I should see the folders and message list all the time as well as all the menus.
I use Windows 10.
I attached a screenshot (some sensitive data has been pixelized).

Comment 1

[Krzysztof]

Attachment: This is what I see just after opening Thunderbird or after bringin it back from minimize

Comment 2

[Krzysztof]

Attachment: This is how it should look but to get this I have to move the cursor all over the screen to reveal all folders and messages. I blured or pixelized sensitive data.

Comment 3

[Thomas D. (:thomas8)]

Please try to disable hardware acceleration, at Options, search for hardware - does that help?

Comment 4

[Krzysztof]

Yes, that helped and now everything is fine :) Thanks
Paradoxically, I also noticed that after disabling the hardware acceleration option, Thunderbird started to run faster :)